poj 3543 iChess

#include <iostream>#include <cmath>using namespace std;int main(){int b, w;int size;while(2 == scanf("%d %d", &b, &w)){if(b == 0 && w == 0 ){printf("Impossiblen");}else{if(w == b){size = (int)sqrt(double(w+b)); //这边也要注意！}else {size = (int)sqrt(double(2 * (b > w ? w : b) + 1)); }printf("%dn", size);}}return 0;}